DE37590C - Shutter and dazzle device for photographic lenses and optical instruments - Google Patents

Shutter and dazzle device for photographic lenses and optical instruments

Info

Publication number
DE37590C
DE37590C DENDAT37590D DE37590DA DE37590C DE 37590 C DE37590 C DE 37590C DE NDAT37590 D DENDAT37590 D DE NDAT37590D DE 37590D A DE37590D A DE 37590DA DE 37590 C DE37590 C DE 37590C
Authority
DE
Germany
Prior art keywords
shutter
optical instruments
ring
dazzle device
photographic lenses
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DENDAT37590D
Other languages
German (de)
Original Assignee
PRIGGE & HEUSCHKEL in Coburg, Neugasse 4
Publication of DE37590C publication Critical patent/DE37590C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B9/00Exposure-making shutters; Diaphragms
    • G03B9/08Shutters
    • G03B9/10Blade or disc rotating or pivoting about axis normal to its plane
    • G03B9/18More than two members
    • G03B9/22More than two members each moving in one direction to open and then in opposite direction to close, e.g. iris type

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Shutters For Cameras (AREA)

Description

KAISERLICHESIMPERIAL

Bei der Construction dieses Apparates leitete der Gedanke, einen Verschlufs herzustellen, welcher während der ganzen Dauer des Schliefsens und Oeffnens eine annähernd kreisförmige Oeffnung ergiebt. Der Apparat erhielt zur Erreichung dieses Zweckes folgende Einrichtung (Fig. 1 bis 6).In the construction of this apparatus, the idea of creating a lock led the way an approximately circular opening during the entire duration of opening and closing yields. To achieve this purpose, the apparatus was given the following equipment (FIGS. 1 to 6).

Um die Oeffnung O herum liegen sechs papierdünne Metallplättchen von der Form -F; diese sind iri den Punkten d (Fig. 4) um sechs in gleichem Abstande vom Centrum in die Grundplatte A eingeschraubte Stahlstifte drehbar. Die gleichmäfsige Bewegung der Flügel F wird gesichert durch die in die Verstärkung von F eingeschraubten Stifte t (Fig. 1 und 2), welche in sechs Ausschnitten des Stahlringes -R1 (Fig. 1) liegen. Dieser Ring ist drehbar um drei Stahlrollen r; an demselben sind die Spiralfedern/ befestigt, welche nach Niederdrücken des Sperrhakens h die Drehung des Ringes und damit das Verschliefsen bezw. Oeffnen der Oeffnung O bewirken.Around the opening O are six paper-thin metal plates of the form -F; these can be rotated at points d (FIG. 4) by six steel pins screwed into the base plate A at the same distance from the center. The uniform movement of the wings F is ensured by the pins t screwed into the reinforcement of F (Fig. 1 and 2), which are located in six sections of the steel ring -R 1 (Fig. 1). This ring can be rotated around three steel rollers; on the same the spiral springs / are attached, which after depressing the locking hook h, the rotation of the ring and thus the closure respectively. Cause opening of the O opening.

Da der Verschlufs in vorliegender Ausführung hauptsächlich für Momentaufnahmen bestimmt ist, so ist eine Vorrichtung der eben beschriebenen Art auf jeder Seite der Grundplatte Ä angebracht, doch sind die Spiralfedern so angeordnet, dafs auf der einen Seite das Schliefsen, auf der anderen das Oeffnen erfolgt. Je nachdem man nun (nach Aufziehen der beiden Stahlringe R1 und R2 mittelst der Griffe e, und e2) beide Sperrhaken Ji1 und h2 zugleich niederdrückt oder nach Auslösen des Oeffnungsringes R1 eine beliebig lange Zeit bis zur Auslösung des Schlufsringes R2 verstreichen läfst, erhält man eine kürzere oder längere Expositionsdauer. Die Regulirung dieser Zeitdauer wird durch den dritten Stahlring R& erreicht, und zwar in folgender Weise. Sind alle drei Ringe aufgezogen und läfst man die pneumatische Auslösung H (Fig. 5) wirken, so werden mittelst der Schrauben S1 und S2 die Sperrhaken der Ringe R1 und JR3 niedergedrückt und diese somit ausgelöst. Die Oeifhung ist also so lange frei, bis der auf dem Stahlring R3 befindliche Schieber D den Sperrhaken h2 zurückstöfst und damit den Schlufsring -R2 auslöst. Die Regulirung der Bewegung von -R8 geschieht durch die Bremse b; dreht man nämlich die Scheibe S, so wird dadurch der Drehpunkt η des Bremshebels m und damit auch der Druck der Bremse b gegen den Ring Rs verändert. Kürzere Expositionsdauer wird also erreicht durch Verschieben des Schiebers D gegen den Sperrhaken /z2 und Drehung der Scheibe S nach rechts, längere durch Zurückschieben des Schiebers und Drehung von S nach links.Since the shutter in the present embodiment is mainly intended for snapshots, a device of the type just described is attached to each side of the base plate A , but the spiral springs are arranged in such a way that closing takes place on one side and opening on the other. Depending on whether one now depresses both locking hooks Ji 1 and h 2 at the same time (after opening the two steel rings R 1 and R 2 by means of handles e and e 2 ) or, after releasing the opening ring R 1, any length of time until the release ring R is released 2 elapses, the exposure time is shorter or longer. The regulation of this time is achieved by the third steel ring R & , in the following way. When all three rings have been pulled up and the pneumatic release H (Fig. 5) is activated, the locking hooks of the rings R 1 and JR 3 are pressed down by means of the screws S 1 and S 2 and they are thus released. The opening is therefore free until the slide D located on the steel ring R 3 pushes back the locking hook h 2 and thus triggers the locking ring -R 2. The regulation of the movement of -R 8 is done by the brake b; If you turn the disk S, the pivot point η of the brake lever m and thus also the pressure of the brake b against the ring R s are changed. A shorter exposure time is achieved by moving the slide D against the locking hook / z 2 and turning the disc S to the right, longer exposure times by sliding the slide back and turning S to the left.

Claims (1)

Patent-Anspruch:Patent claim: Eine Verschlufs- und Blendvorrichtung für photographische Objective und optische Instrumente, bei welcher die gleichmäfsige Bewegung der Verschlufsplättchen F durch einen Ring bewirkt wird, in welchen dieselben eingelenkt sind.A shutter and aperture device for photographic objectives and optical instruments, in which the uniform movement of the shutter plates F is effected by a ring into which they are pivoted. Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.
DENDAT37590D Shutter and dazzle device for photographic lenses and optical instruments Expired - Lifetime DE37590C (en)

Publications (1)

Publication Number Publication Date
DE37590C true DE37590C (en)

Family

ID=313333

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT37590D Expired - Lifetime DE37590C (en) Shutter and dazzle device for photographic lenses and optical instruments

Country Status (1)

Country Link
DE (1) DE37590C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1162683B (en) * 1960-08-12 1964-02-06 Kunju Chatani Closure arranged between the lenses and provided with two sets of arched leaves
DE1170771B (en) * 1959-12-21 1964-05-21 Polaroid Corp Shutter for photographic apparatus with two shutter plates
DE1172533B (en) * 1959-10-22 1964-06-18 Polaroid Corp Lens shutter for photographic apparatus
DE1189374B (en) * 1962-11-30 1965-03-18 Compur Werk Gmbh & Co Photographic shutter with two sector systems

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1172533B (en) * 1959-10-22 1964-06-18 Polaroid Corp Lens shutter for photographic apparatus
DE1170771B (en) * 1959-12-21 1964-05-21 Polaroid Corp Shutter for photographic apparatus with two shutter plates
DE1162683B (en) * 1960-08-12 1964-02-06 Kunju Chatani Closure arranged between the lenses and provided with two sets of arched leaves
DE1189374B (en) * 1962-11-30 1965-03-18 Compur Werk Gmbh & Co Photographic shutter with two sector systems

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